[MacPorts] #69043: libknot: error: unknown type name 'sa_endpoints_t' (support earlier OS?)

[MacPorts]

#69043: libknot: error: unknown type name 'sa_endpoints_t' (support earlier OS?)
-------------------------+-------------------------------------------------
  Reporter:              |      Owner:  catap
  barracuda156           |
      Type:  defect      |     Status:  assigned
  Priority:  Low         |  Milestone:
 Component:  ports       |    Version:  2.8.1
Resolution:              |   Keywords:  yosemite, mavericks, mountainlion,
      Port:  libknot     |  lion, snowleopard, leopard
-------------------------+-------------------------------------------------

Comment (by catap):

 Base on https://developer.apple.com/documentation/kernel/sa_endpoints_t it
 is clear that required structure were introduced since 10.11 :)

 You may try to add condition to this ifdef that brokes TCP Fast Open
 feature. Probably it might work after all.

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Ticket URL: <https://trac.macports.org/ticket/69043#comment:1>
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